2010 Cadillac STS vs. 1999 Alfa Romeo 166
To start off, 2010 Cadillac STS is newer by 11 year(s). Which means there will be less support and parts availability for 1999 Alfa Romeo 166. In addition, the cost of maintenance, including insurance, on 1999 Alfa Romeo 166 would be higher. At 3,600 cc (6 cylinders), 2010 Cadillac STS is equipped with a bigger engine. In terms of performance, 2010 Cadillac STS (302 HP @ 6300 RPM) has 147 more horse power than 1999 Alfa Romeo 166. (155 HP @ 6400 RPM). In normal driving conditions, 2010 Cadillac STS should accelerate faster than 1999 Alfa Romeo 166. With that said, vehicle weight also plays an important factor in acceleration. 2010 Cadillac STS weights approximately 307 kg more than 1999 Alfa Romeo 166. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2010 Cadillac STS is rear wheel drive (RWD), it offers better handling in dry conditions; in addition, if you are looking to drift, it will be much easier to do with 2010 Cadillac STS. However, in wet, icy, snow, or gravel driving conditions, 1999 Alfa Romeo 166, being front wheel drive (FWD), will offer much better control with better grip. With that said, do keep in mind that many other factors such as speed and the wear on your tires can also have significant impact on traction and control. Let's talk about torque, 2010 Cadillac STS (368 Nm @ 5200 RPM) has 181 more torque (in Nm) than 1999 Alfa Romeo 166. (187 Nm @ 2800 RPM). This means 2010 Cadillac STS will have an easier job in driving up hills or pulling heavy equipment than 1999 Alfa Romeo 166. 2010 Cadillac STS has automatic transmission and 1999 Alfa Romeo 166 has manual transmission. 1999 Alfa Romeo 166 will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2010 Cadillac STS will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2010 Cadillac STS | 1999 Alfa Romeo 166 | |
| Make | Cadillac | Alfa Romeo |
| Model | STS | 166 |
| Year Released | 2010 | 1999 |
| Body Type | Sedan | Sedan |
| Engine Position | Front | Front |
| Engine Size | 3600 cc | 1970 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 302 HP | 155 HP |
| Engine RPM | 6300 RPM | 6400 RPM |
| Torque | 368 Nm | 187 Nm |
| Torque RPM | 5200 RPM | 2800 RPM |
| Drive Type | Rear | Front |
| Transmission Type | Automatic | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1802 kg | 1495 kg |
| Vehicle Length | 4996 mm | 4730 mm |
| Vehicle Width | 1844 mm | 1820 mm |
| Vehicle Height | 1463 mm | 1420 mm |
| Wheelbase Size | 2957 mm | 2710 mm |
| Fuel Tank Capacity | 64 L | 72 L |
